I agree most PP lounges do not enforce 2.5 hour limit. You can easily squeeze 3- 4 hours or more depending on the staff.
Originally Posted by
estnet
There are quite a few places where there are "sleeper" areas with almost lie flat seats sort of tucked into corners. Also IMHO at other airports (HKG) the pp lounge(s) don't really enforce the 3 hour limit overnight